#include <iostream>
#define PI 3.1415926

using namespace std;

int main(){
    float radius;    
    float area;
//    int i(2);
    int i;    
    cout << "i = " << (i = 1) << endl;
    cout << "Radius = ";
    cin >> radius;

    area = radius * radius * PI;
    cout << "Area = " << area << endl;

    int x1, x2, x3;
    cout << "Input x1, x2, x3" << endl;
    cin >> x1 >> x2 >> x3;
    cout << "x1 = " << x1 << ", x2 = " << x2 << ", x3 = " << x3 << endl;

    return 0;
}
